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Finding the Fourth Proportional to 640.15, 958.93 and 594.02

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Solution

The fourth proportional to 640.15, 958.93 and 594.02 is: 889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    640.15 : 958.93 = 594.02 : x
  2. Step 2: Convert to fraction form
    640.15/958.93 = 594.02/x
  3. Step 3: Cross multiply
    640.15x = 958.93 × 594.02
  4. Step 4: Simplify right side
    640.15x = 569,624.51
  5. Step 5: Solve for x
    x = 569,624.51/640.15
  6. Step 6: Final answer
    x = 889.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.